/// <summary>
///
/// </summary>
/// <param name="pg"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public IPathGeometry ToPathGeometry(AM.PathGeometry pg, double dx, double dy)
{
var factory = _serviceProvider.GetService <IFactory>();
var geometry = factory.CreatePathGeometry(
ImmutableArray.Create <IPathFigure>(),
pg.FillRule == AM.FillRule.EvenOdd ? FillRule.EvenOdd : FillRule.Nonzero);
var context = factory.CreateGeometryContext(geometry);
foreach (var pf in pg.Figures)
{
context.BeginFigure(
factory.CreatePointShape(pf.StartPoint.X + dx, pf.StartPoint.Y + dy),
pf.IsFilled,
pf.IsClosed);
foreach (var segment in pf.Segments)
{
if (segment is AM.ArcSegment arcSegment)
{
context.ArcTo(
factory.CreatePointShape(arcSegment.Point.X + dx, arcSegment.Point.Y + dy),
factory.CreatePathSize(arcSegment.Size.Width, arcSegment.Size.Height),
arcSegment.RotationAngle,
arcSegment.IsLargeArc,
arcSegment.SweepDirection == AM.SweepDirection.Clockwise ? SweepDirection.Clockwise : SweepDirection.Counterclockwise);
}
else if (segment is AM.BezierSegment cubicBezierSegment)
{
context.CubicBezierTo(
factory.CreatePointShape(cubicBezierSegment.Point1.X + dx, cubicBezierSegment.Point1.Y + dy),
factory.CreatePointShape(cubicBezierSegment.Point2.X + dx, cubicBezierSegment.Point2.Y + dy),
factory.CreatePointShape(cubicBezierSegment.Point3.X + dx, cubicBezierSegment.Point3.Y + dy));
}
else if (segment is AM.LineSegment lineSegment)
{
context.LineTo(
factory.CreatePointShape(lineSegment.Point.X + dx, lineSegment.Point.Y + dy));
}
else if (segment is AM.QuadraticBezierSegment quadraticBezierSegment)
{
context.QuadraticBezierTo(
factory.CreatePointShape(quadraticBezierSegment.Point1.X + dx, quadraticBezierSegment.Point1.Y + dy),
factory.CreatePointShape(quadraticBezierSegment.Point2.X + dx, quadraticBezierSegment.Point2.Y + dy));
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
}
return(geometry);
}
public void DrawPolygon(Polygon polygon, FillStyle fillStyle, LineStyle lineStyle,
PointStyle vertexStyle, bool fast)
{
Polygon viewPolygon = (Polygon)Viewport.GetViewGeometry(polygon);
AM.PathGeometry geometry = new AM.PathGeometry();
AM.StreamGeometryContext geometryContext = geometry.Open();
DrawPolygonRing(viewPolygon.Shell, false, geometryContext);
foreach (LinearRing hole in viewPolygon.Holes)
{
DrawPolygonRing(hole, true, geometryContext);
}
m_Context.DrawGeometry(new SolidColorBrush(fillStyle.Color.Argb),
new Pen(new SolidColorBrush(lineStyle.Color.Argb)),
geometry);
DrawCoordinates(viewPolygon.Shell.Coordinates, vertexStyle, fast, true);
foreach (LinearRing hole in viewPolygon.Holes)
{
DrawCoordinates(hole.Coordinates, vertexStyle, fast, true);
}
}